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https://issues.apache.org/jira/browse/LUCENE-10618?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17554640#comment-17554640
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fang hou commented on LUCENE-10618:
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hi [~jpountz] i'm new to lucene, do you mind if i take this issue? and do you
think it's appropriate for a beginner to start from this?
> Implement BooleanQuery rewrite rules based for minimumShouldMatch
> -----------------------------------------------------------------
>
> Key: LUCENE-10618
> URL: https://issues.apache.org/jira/browse/LUCENE-10618
> Project: Lucene - Core
> Issue Type: Improvement
> Reporter: Adrien Grand
> Priority: Minor
>
> While looking into a test failure I noticed that we sometimes create weights
> for boolean queries with no SHOULD clauses and a non-zero
> minimumNumberShouldMatch.
> We could rewrite BooleanQuery to MatchNoDocsQuery when the number of SHOULD
> clauses is less than minimumNumberShouldMatch, and make SHOULD clauses
> required when the number of SHOULD clauses is equal to
> minimumNumberShouldMatch.
> This feels a bit like a degenerate case (why would the use create such a
> query in the first place?) but this case can also happen to non-degenerate
> queries if some SHOULD clauses rewrite to a MatchNoDocsQuery and get removed
> through rewrite.
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